Attention: TDR Forum Junkies Hi Folks,
I'm starting to wrap up my Hummer/Cummins conversion and my guess is that the speedo will be off. I have 42" tires on my truck and geared hubs (1. 9) reduction so I'll need to calibrate something somewhere.
I have a GPS with speedometer output so I know how fast I'm going, so going 60 on the GPS, what/where do need to adjust to get the Dodge Ram dash in my Hummer to read 60? Don't worry, I wont adjust it while driving.
PS, No Airbag - it would go off when hit a boulder or a tree!
I don't know what I'd do without this board. Thanks!
I'm starting to wrap up my Hummer/Cummins conversion and my guess is that the speedo will be off. I have 42" tires on my truck and geared hubs (1. 9) reduction so I'll need to calibrate something somewhere.
I have a GPS with speedometer output so I know how fast I'm going, so going 60 on the GPS, what/where do need to adjust to get the Dodge Ram dash in my Hummer to read 60? Don't worry, I wont adjust it while driving.
PS, No Airbag - it would go off when hit a boulder or a tree!
I don't know what I'd do without this board. Thanks!
